Coronary Heart Disease. Essays - Vascular Diseases,

Coronary Heart disease. Any heart disorder due to a restricted supply of blood to the heart muscle is called coronary heart disease. The most common symptom of heart disease is angina pain, which is when you get gripping pains in your left arms and around the chest area. A heart attack usually occurs quite suddenly, with either little or no warning. Chest pain may be a bit like that of angina but it is usually more severe and not necessarily brought on by exertion or relieved by rest. The patient or victim may also start to sweat, feel weak and even lose consciousness. If the attack completely stops the heart, this is known as cardiac arrest and death may follow. The severity of the heart attack depends on the amount of muscle affected and the health of the other coronary arteries. Coronary heart disease is commonly caused by narrowing of the coronary arteries by Atherosclerosis, a build-up of fatty deposits in the lining of the arteries. The process that leads to Atherosclerosis begins with the accumulation of excess fats and cholesterol in the blood. These substances fill the lining of arteries at sites of microscopic damage, forming deposits called atheroma. When the atheroma builds up, it narrows the arteries and eventually no blood will be able to flow through. To clear the arteries you can have two things done: theses are: Balloon Angioplasty which is where an incision is made in the patients arm or leg, through this a guide wire is pushed into the brachial [or femoral] artery. Using an X-ray or ultrasound guidance, the wire is then threaded into the affected coronary artery [via the aorta] to the blockage. At the blockage the wire is carefully moved in to place between the swollen walls and the small balloon which is attached to the guide wire is very sl owly filled with liquid this pushes against the pall and clears the passage. : Another way to clear the blocked artery is called Laser catheters. It is similar Balloon Angioplasty. It uses a laser for the unblocking. The mechanism is inserted into the artery to the problem area, a balloon like device expands stopping the flow of blood, then a tiny laser gets rid of the blockage.

Free Essays on Geronimo

Profound sense of history has long compelled the Indian peoples of the Great Plains of North America to chronicle their lives pictorially. Their paintings on rock walls, buffalo hide robes and tipis provided records of history, experiences and visions. A man’s exploits in war or success in the hunt would be painted on his garments and on his shelter to validate and memorialize his heroic deeds In the mid-19th century, Plains men broke with the hide and rock painting traditions of the past and adopted a new, smaller-scale medium for their pictorial histories: they began to draw on paper. They obtained pencils, crayons, and watercolors from white explorers and traders who had trickled across the continent early in the century, and later from the military men and Indian agents who swept across the Mississippi in the second half of the century in an unstoppable wave that changed Plains Indian life irrevocably. Plains Indian Drawings, 1865-1935: Pages from a Visual History, organized by The Drawing Center, New York, and The American Federation of Arts, is the first large-scale exhibition to survey this tradition as it existed among Lakota, Cheyenne, Arapaho and Kiowa peoples, and to consider these drawings as an artistic genre unto itself. It will travel to three other museums in the United States during 1996-97. 1. Julian Scott Ledger Artist A, Kiowa, "Kiowa Couples," 1880. Pencil, ink and colored pencil, 7 1/2 x 12 inches. Collection Mr. and Mrs. Charles Diker. Western-produced paper was used by Indian artists of the Great Plains as early as the 1830s as a new surface on which to draw and record the profound changes that were occurring around them. The large bound ledger book, used for inventory by traders and military officers, became a common canvas for the renderings of Indian artists, although autograph books, sketchbooks, note paper, recycled stationery and other paper materials were also utilized. Sometimes pencils... Free Essays on Geronimo Free Essays on Geronimo Profound sense of history has long compelled the Indian peoples of the Great Plains of North America to chronicle their lives pictorially. Their paintings on rock walls, buffalo hide robes and tipis provided records of history, experiences and visions. A man’s exploits in war or success in the hunt would be painted on his garments and on his shelter to validate and memorialize his heroic deeds In the mid-19th century, Plains men broke with the hide and rock painting traditions of the past and adopted a new, smaller-scale medium for their pictorial histories: they began to draw on paper. They obtained pencils, crayons, and watercolors from white explorers and traders who had trickled across the continent early in the century, and later from the military men and Indian agents who swept across the Mississippi in the second half of the century in an unstoppable wave that changed Plains Indian life irrevocably. Plains Indian Drawings, 1865-1935: Pages from a Visual History, organized by The Drawing Center, New York, and The American Federation of Arts, is the first large-scale exhibition to survey this tradition as it existed among Lakota, Cheyenne, Arapaho and Kiowa peoples, and to consider these drawings as an artistic genre unto itself. It will travel to three other museums in the United States during 1996-97. 1. Julian Scott Ledger Artist A, Kiowa, "Kiowa Couples," 1880. Pencil, ink and colored pencil, 7 1/2 x 12 inches. Collection Mr. and Mrs. Charles Diker. Western-produced paper was used by Indian artists of the Great Plains as early as the 1830s as a new surface on which to draw and record the profound changes that were occurring around them. The large bound ledger book, used for inventory by traders and military officers, became a common canvas for the renderings of Indian artists, although autograph books, sketchbooks, note paper, recycled stationery and other paper materials were also utilized. Sometimes pencils...